Why does the homemade purple cabbage acid base indicator change color on its own, and there are no s

Take the red cabbage in a mortar or rub it with a grater, add 1:1 water and alcohol to soak, filter it with a strainer or gauze, or squeeze it out, and the juice obtained is a homemade acid-base indicator for purple cabbage.

Summary. Hello, it's the chemistry. In fact, not only purple cabbage juice, petals and some leaves can be used to do acid-base indication, its main color component is anthocyanin, which is an amphoteric nonionic surfactant, but also a dye, anthocyanin side becomes red when it encounters acidity, and turns blue when it encounters alkaline, its homologues and gardenia pigments that are common in our natural food pigments (gardenia blue and gardenia red), as well as anthocyanin glycosides encounter sodium hypochlorite and other strong oxidizing "bleaching" significant discoloration (chromogenic groups are redoxed) at the time of solvents, and so on.

Hello, may I ask purple cabbage juice as an acid-base indicator, is it a chemical reaction that turns red when it meets vinegar and turns green when it meets alkali?

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Hello, it's the chemistry. In fact, Li Shushou is not only purple cabbage juice, petals and some leaves can be used to do acid-base indication, its main color component is anthocyanin, is an amphoteric nonionic surfactant, but also a dye, anthocyanin side when it encounters acidity, when it encounters alkaline, it turns blue, its homologues and our natural food pigments which are common gardenia pigments (gardenia blue gardenia red **), and anthocyanin glycosides encounter sodium hypochlorite and other strong oxidation and cherry "bleaching" significant discoloration (chromogenic groups are redoxed) at the time of solvents, and so on.

Purple cabbage juice can be used as an acid-base indicator, it turns red when it encounters acid, it turns blue when it encounters alkali, and after adding vinegar, the solution is acidic, so it turns red; Add baking soda or alkaline surface to the aqueous solution to talk about alkaline resistance, which can be neutralized with acid, and the solution becomes neutral and returns to the original color of the previous commetic; If there is too much aqueous solution of baking soda or alkaline surface with the spring fruit, the solution will be alkaline and turn blue.

Because purple cabbage is very rich in anthocyanins, it can be used to make acid-base indicators, and white vinegar, water, and baking soda are acidic, neutral and alkaline substances respectively.

Summary. Hello dear! If you can replace purple cabbage water for experiments, you can use some purple potato water, and bayberry juice is also okay, they are rich in anthocyanins, which have the property of changing color when encountering acid and alkali.

The function of purple cabbage is to contain anthocyanins, which can be replaced by acid-base indicators in chemical reagents when they are not available.

Morning glory can be used instead of purple cabbage as an acid-base indicator, and the discoloration refers to the purple litmus solution.

What can you exchange purple cabbage for in a homemade acid-base indicator?

Hello dear! If you can replace purple cabbage water for experiments, you can use some purple potato water, and the juice of Yang Wei or plum is also OK, they are rich in anthocyanins, which have the property of changing color when encountering acid and alkali. The function of purple cabbage is to contain anthocyanins, and the masking liquid can be replaced by acid-base indicators in chemical reagents when there is no such thing.

Morning glory can be used as an acid-base indicator instead of purple wilt and brussels sprout, and the color change refers to purple litmus solution.

These things can be used in place of it.

Purple cabbage is an alkaline vegetable and is also an indicator.

After the metabolism of purple cabbage, there are more sodium ions, potassium ions, magnesium ions, and calcium ions, which are easy to produce more alkali in the body and form an alkaline reaction.

Generally speaking. Foods that contain more minerals such as potassium, calcium, and magnesium are alkaline foods. The foods we consume on a daily basis can be broadly divided into acidic foods and alkaline foods. From a nutritional point of view, a reasonable combination of acidic and alkaline foods is a guarantee for good health.

Purple cabbage can also be used as an indicator. When the pH is 7, the solution is neutral, when the pH is 7, the solution is acidic, and when the pH is 7, the solution is alkaline. When acidic, purple cabbage water will be red, and conversely, blue.

Uses of Purple Cabbage What is the use of purple cabbage as an acid-base indicator.

Hello dear, I've been waiting for a long time, I'm glad to answer for you. Purple cabbage acts as an acid-base genoxade indicator to distinguish whether the solution is acidic or alkaline. The anthocyanins in the purple sugar chain cha hui blue play the role of acid-base indicators, and the color is different in the acid-base ring shed. Hope mine is helpful to you

Summary. Hello, Mess up the red cabbage in a waste plastic box, add liquor and soak it for a period of time, so fill in: liquor;

The insoluble matter obtained in the separation is separated from the liquid, and the soaked juice can be filtered with gauze by the method of filtration, and the homemade purple cabbage juice is obtained, so fill: the soaked juice is filtered with gauze;

Purple cabbage juice is red in an acidic solution, so the toilet cleaner is acidic, and purple cabbage juice is yellow in an alkaline solution, so the kitchen cleaner is alkaline; It is indicated that purple cabbage juice can be used as an acid-base indicator, so fill in: acid; Yellow; Yes, red cabbage only allows it to show different colors in acidic and alkaline solutions

From this experiment, we can feel the following truths:

People can love each other only when they are integrated with each other.

Homemade purple cabbage acid-base indicator activity feeling.

You have a good nuclear fiber, mess up the red cabbage in a waste plastic box, add liquor and soak it for a period of time, so fill in: liquor; The insoluble matter obtained in the separation is separated from the liquid, and the soaked juice can be filtered with gauze by the method of filtration, and the homemade purple cabbage juice is obtained, so fill: the soaked juice is filtered with gauze; Purple cabbage juice is red in an acidic solution, so the toilet cleaner is acidic, and purple cabbage juice is yellow in an alkaline solution, so the kitchen cleaner is alkaline; It is indicated that purple cabbage juice can be used as an acid-base indicator

Sour; Yellow; Noho Clan, purple cabbage can only show different colors in acidic and alkaline solutions From this experiment, we can feel the following truths: People and Chaiga people can only love each other if they are integrated with each other.

The sincerity of people is to interact with the heart.

There is no entrainment in true friendship.

Ask about custom messages].

Summary. Dear dear, it's a pleasure to answer your <>

2. Purple cabbage juice is an acid-base indicator, which will turn red when encountering sexual substances and green when encountering alkaline substances. <>

Purple cabbage is an acid-base indicator that changes color when it encounters acidic or alkaline substances, while citric acid is an acidic substance and baking soda is an alkaline substance. <>

2. Purple cabbage juice is a kind of acid-base indicator, which changes color when it meets + becomes +.

2. Purple cabbage juice is a kind of acid-base indicator, which changes color when it meets + becomes +.

Hurry up. Dear dear, it's a pleasure to answer your <>

2. Purple cabbage juice is an acid-base indicator, which will turn red when encountering sexual substances and green when encountering alkaline substances. <>

Purple cabbage is an acid-base indicator that changes color when it encounters acidic or alkaline substances, while citric acid is an acidic substance and baking soda is an alkaline substance. <>

Dear, purple cabbage water is an acid-base indicator, it turns red when it encounters acidic substances and turns green when it encounters alkaline substances. Purple cabbage water is anthocyanins, which are water-soluble pigments that can change color with the acidity and alkalinity of the cell fluid. If the cell fluid is acidic, it is reddish, and if the cell fluid is alkaline, it is greenish. Yellow River.